Only about 2% of the world population has green eyes.
36
Denmark has twice as many pigs as there are people.
66
Nearly half of the entire world's adult population has never drunk alcohol.
12
About two hundred babies are born worldwide every minute.
237
A third of the human population sneezes when they look at the Sun. Light can signal the ocular nerve near the sinuses and triggers a sneeze.
18
There are approximately three chickens for every human on Earth.
13
Roughly 90% of the world's population live in the northern hemisphere.
18
It took 200,000 years for humans to reach 3 billion in number. It took 40 years for the next 3 billion.
11